Dynamic Q Angle and Core Endurance in Adolescent Athletes With Patellofemoral Pain Syndrome

NCT07328750 | Recruiting

• 1 other identifier: TM-FLEX-BAL-2025
• Study Type: observational
• Target: 85
• Locations: 1 country
• Sites: 1

Brief Summary

This cross-sectional observational study aims to compare trunk mobility, lower extremity flexibility, and functional balance performance across different sports branches in adolescent elite male athletes. Trunk mobility will be assessed using a digital inclinometer in flexion, extension, and rotational movements; hamstring flexibility will be evaluated using the Straight Leg Raise test; and functional balance will be measured using the normalized Y-Balance Test. The study seeks to identify sport-specific biomechanical characteristics and potential indicators related to injury risk and performance adaptations in adolescent competitive athletes.

Conditions

Postural Balance; Athletic Performance

Keywords

Y-Balance Test; Trunk Mobility; Digital Inclinometer; Sports-Specific Biomechanics; Elite Male Athletes; Adolescent Sports Performance

Outcome Measures

Primary Outcomes (1)

• Y-Balance Test Composite Score (%)

  Dynamic functional balance performance assessed using the Y-Balance Test. Composite score is calculated from normalized anterior, posteromedial, and posterolateral reach distances on the dominant limb.

  Baseline (single assessment at study enrollment)

Secondary Outcomes (4)

• Trunk Mobility - Inclinometer Range of Motion (°)

  Baseline (single assessment at study enrollment)

• Hamstring Flexibility - Straight Leg Raise Angle (°)

  Baseline (single assessment at study enrollment)

• Body Composition (Descriptive Variable)

  Baseline (single assessment at study enrollment)

• Body Composition (body mass index)

  Baseline (single assessment at study enrollment)

Study Arms (4)

Wrestling Athletes

Elite adolescent male wrestlers. No intervention is administered; participants undergo standardized clinical and biomechanical assessments including trunk mobility (digital inclinometer), hamstring flexibility (Straight Leg Raise), and functional balance (Y-Balance Test).

Other: Observational Clinical and Biomechanical Assessment

Sprint Athletes

Elite adolescent male sprint runners. No intervention is administered; the same standardized assessment protocol is applied, including trunk mobility, hamstring flexibility, and Y-Balance Test performance.

Other: Observational Clinical and Biomechanical Assessment

Canoe/Kayak Athletes

Elite adolescent male canoe/kayak athletes. No intervention is administered; participants complete the same biomechanical assessment battery as the other cohorts.

Other: Observational Clinical and Biomechanical Assessment

Taekwondo Athletes

Elite adolescent male taekwondo athletes. No intervention is administered; all assessments are performed using the standardized trunk mobility, flexibility, and functional balance testing protocol.

Other: Observational Clinical and Biomechanical Assessment

Interventions

Observational Clinical and Biomechanical Assessment OTHER

No intervention is administered in this study. Participants only undergo standardized observational assessments, including trunk mobility measurements using a digital inclinometer, hamstring flexibility testing with the Straight Leg Raise test, and functional balance evaluation using the Y-Balance Test. No therapeutic or experimental procedures are applied.

Also known as: Standardized Functional Evaluation Protocol

Canoe/Kayak Athletes; Sprint Athletes; Taekwondo Athletes; Wrestling Athletes

Eligibility Criteria

• Age: 15 Years - 17 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Child (0-17)
• Sampling Method: Non-Probability Sample

Study Population

Elite adolescent male athletes aged 15-17 years from different sports branches (wrestling, sprint, canoe/kayak, and taekwondo). Participants are recruited from sports performance centers and evaluated using standardized trunk mobility, flexibility, and functional balance assessments.

You may qualify if:

• Male adolescent elite athletes aged 15-17 years
• Licensed and actively training and competing in their respective sports branch
• Minimum 3 years of continuous training experience
• Ability to complete all clinical and biomechanical assessments
• Written informed consent (parental consent for minors)

You may not qualify if:

• Acute musculoskeletal injury within the past 3 months
• Chronic lower extremity or spinal pathology
• History of orthopedic surgery within the past 6 months
• Neurological, metabolic, or systemic condition affecting movement or balance
• Inability to comply with the testing protocol or incomplete data

Sponsors & Collaborators

• Eastern Mediterranean University: lead

Study Sites (1)

Burcin Ugur Tosun

Famagusta, 99010, Cyprus

RECRUITING

Study Officials

• burcin ugur tosun

  Ministry of Youth and Sports, Olympic Preparation Center, Adana, Türkiye

  STUDY CHAIR

Central Study Contacts

burcin ugur tosun

CONTACT

00905077721772; burcnugur@yahoo.com

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator PhD Physiotherapist Burcin Ugur Tosun

Study Record Dates

• First Submitted: December 26, 2025
• First Posted: January 9, 2026
• Study Start: December 1, 2025
• Primary Completion: February 15, 2026
• Study Completion: February 20, 2026
• Last Updated: January 9, 2026

Record last verified: 2026-01

Locations

CY (1)